Switched Dc Power; Idfe Low Voltage Power Supply (Idfe Lvps) - Xerox DocuColor 12/DCCS50 Service Manual

Switched DC Power

Switched DC Power comprises the outputs of the IDFE LVPS, IOT LVPS and the IIT/IPS LVPS.

IDFE Low Voltage Power Supply (IDFE LVPS)

As shown in Figure 1, the AC input power to the IDFE LVPS is supplied by Unswitched AC
Power through a Choke Coil and an SSR. The SSR is controlled by the IDFE LV SEQ from the
AC Driver PWBA; IDFE LV SEQ is controlled by the Main Power Switch. When switching off
machine power, an RC network on the AC Driver PWBA delays the change of state of IDFE LV
SEQ by approximately 22 seconds. This permits the IDFE to perform an orderly shutdown.
Reissue
DocuColor 12/DCCS50
The IDFE LVPS has two outputs:
•
•
Figure 2
Figure 1 IDFE LVPS AC Power Switching and DC Power Distribution
1/05
10-17
+5.1 VDC at 11 amps
+12 VDC at 2 amp
shows the location of the IDFE LVPS.
Principles of Operation
Switched DC Power